protected List<Command> buildTagChangeCommand(OsmPrimitive primitive, TagCollection tc) {
List<Command> cmds = new LinkedList<>();
for (String key : tc.getKeys()) {
if (tc.hasUniqueEmptyValue(key)) {
if (primitive.get(key) != null) {
cmds.add(new ChangePropertyCommand(primitive, key, null));
}
} else {
String value = tc.getJoinedValues(key);
if (!value.equals(primitive.get(key))) {
cmds.add(new ChangePropertyCommand(primitive, key, value));
}
}
}
return cmds;
}
/**
* Replies the current tag value for the tag <tt>restriction</tt>. The empty tag, if there isn't a
* tag <tt>restriction</tt>.
*
* @return the tag value
*/
public String getRestrictionTagValue() {
TagCollection tags = tagEditorModel.getTagCollection();
if (!tags.hasTagsFor("restriction")) return "";
return tags.getJoinedValues("restriction");
}